Regulating-valve for gas-motors.



Patenlted Dec. l9, I899 M. E. HERTEL. REGULATING VALVE FOR GAS MOTORS. (Application filed. Feb. 11, 1899.)

3 Sheets-Sheet (No Model.)

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, No. 639,385. 7 Patented Dec. [9, I899.

m. E. HERTEL.

REGULATING VALVE FOB GAS MOTORS.

(Application filed Feb. 11, 1899.) (No Model) 3 Shaats-$heet 2.

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Patented Dec. 19, I899.

m. E. HEBTEL. REGULATING VALVE FOR GAS MOTORS.

(Applicaiion filed Feb. 11, 1899.)

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MAX E. I-IERTEL, OF GREENFIELD, MASSACHUSETTS, ASSIGNOR TO THE OAKMAN MOTOR VEHICLE COMPANY, OF

CHICAGO, ILLINOIS.

REGULATlNG-VALVE FOR GAS-MOTORS.

SPECIFICATION forming part of Letters Patent No; 639,385, dated December 19, 1899'.

Original application filed May 16, 1898,

To all whom it mag concern.-

Be it known that 1, MAX E. HERTEL, a citizen of the United States, residing at Greenfield, in the county of Franklin and State of Massachusetts, have invented a new and useful Improvement in Regulating-Valves for Gas-Motors, of which the following is a specification.

This invention, which is divided out of my pending gas motor application, Serial No. 680,842, filed May 16, 1898, relates to an improved construction of speed-regulating valve for a gas-motor, the object being to provide a single valve device for regulating the quality of the gas and air mixture and the quantity of the mixture admitted to the motor-cylinder.

Referring to the accompanying drawings, Figure 1 is a view in sectional side elevation of a gas-motor equipped with my improved regulating valve device; Fig. 2, a broken view showing in front elevation details of the mechanism for adjusting longitudinally the inner tube of the valve device by hand; Fig; 3, a section taken at the line 3 on Fig. 8 and viewed in the direction of the arrow, showing the said valveadjusting mechanism in side elevation; Fig. 4, a cross-sectional view of the gas-motor, presenting the regulating-valve device in position by a longitudinal sectional view and showing diagrammatically the gasolene-tank, the hot-air pipe leading thereto from the muffler, and the gas-supply leading from the tank; Fig. 5, a section taken at the line 5 on Fig. 4 and viewed in the direction of the arrow; Fig. 6, a section taken at the line 6 on Fig. 4 and viewed in the direction of the arrow; Fig. 7, a section taken at the line 7 on Fig. at and viewed in the direction of the arrow, and Fig. 8 a broken plan view of the adjusting mechanism shown in Fig. 3 and showing the governor.

A and B denote the cylinders of a gas-motor, containing the pistons A and B, suitably connected with the driving mechanism of the motor. These cylinders are shown as formed of one casting, with a water-space C extending between and about them, except at their outer sides, and provided with the inlet and outlet pipes '1' and r. Each cylinder is surmounted by a cylindrical valve-casing like Serial No. 680 84=2. Divided an this application filed February 11, 1899. Serial No.

705,244. (NomodeL) that shown at D in Fig. 1, these casings hav ing inlet-controlling and exhaust-controlling valves, respectively, in their opposite ends and intercommunicating through tubes (not shown) interposed between them near their opposite ends and each opening from its base into a cylinder below it, all as set forth in my aforesaid application.

A pipe 19 leads to the valve-casing D at one side of the motor, and a pipe 0 takes the exhaust-gas from the other valve-casing through a muffler, (represented at G,) whence the exhaust passes out through an opening 0 and in its course through the muffler heats air, which passes through a pipe 0 into a gasolene-supply tank V at its base, the tank communicating from its top with the gas-supply I pipe h, connected with the regulating-valve, as hereinafter described.

F is my improved regulating-valve, through which the mixture of gas and air is supplied to the motor cylinders. It comprises a stationary tube 1', shown supported from the bottom of the cylinder B, to extend transversely thereof and containing at suitable intervals apart three sets of circumferentially-serial openings to, y, and .2, preferably of elongated rectangular shape, and a tube 11, within the tube z', in which it is rotatably and longitudinally movable, and having at suitable intervals apart three sets of circumferentially-serial openings x, y, and 2, like the.

openings in the tube 2', with which they regis ter, except that the width of the openings 2 may be somewhat greater than that of the openings 2', as shown in Fig. 5, and that the openings w and y should be longer than the openings w and 'y, as shown in Fig. 4.

The openings so x afford the air-inlet, and to that end they are open to the surrounding atmosphere. The openings y y afford the gasinlet, and to that end they are surrounded by an annular chamber h, into which leads the gas-supplypipe h from the top of the gasolenetank V, with the base of which the air-heating muffler G is connected by the pipe 0.

The openings 2: .e afford the outlet for the gas-and-air mixture, and to that end they communicate through an annular chamber h surrounding them, with the pipe 19, leading to a mo closelyfitting Figs. 3 and 8, is provided.

valve-casing D and containing a check-valve 71 Fig. 5, to prevent any backflow of the gas to the regulator F and its consequent scape into the atmosphere and loss.

A rod 1' extends from the projecting end of the inner valve-tube 2" through a bearing at 1' and carries at its outer end an arm i con-' nected from its free end by a bar i with a bellcrank lever 2' fulcrn med at its angle to a part of the motor-frame I and having connected with it an operating-rod i extending into conveniently-accessible position.

By raising and lowering the rod i the inner tube 2" is turned to regulatethe dimensions of the air and the gas inlet openings and accordingly regulate the quantity of the mixture of air and gas. Thegreater width of the openings 2 than the openings 2 is the preferred construction to prevent any diminution in the dimensions of the outlet by turning the inner valve-tube, since inasmuch as no more of the mixture can escape at the outlet than is admitted into the regulating-valve there is no purpose in reducing the dimensions of the outlet-openings below their normal maximum width. In other words, itis not desirable that in gaging the inlet-openings the outlet-openings shall be affected.

The purpose of rendering the tube t" longitudinally adjustable with relation to the tube 11 is to regulate the size of the discharge-openings for the gas-and-air mixture through the pipe 19 into the respective valve-casing D; but the longitudinal adjustment of the tube 11 does not affect the air and gas inlet open ings. The openings .2 and 2 being of the same length, when they register, exactly the full dimensions of the discharge-openings are presented to the outflow of the fuel mixture, and this outflow may be diminished to any extent or entirely shut off by moving the openings a longitudinally with reference to the openings 2.

As the means for producing the longitudinal adjustment of the inner tube 2" a rod g,

This rod is confined at one end between collars 7f '15 on the rod 47 and extends therefrom past a circumferentially-grooved collar g of a governor Z, of usual or any suitable construction, on the motor-shaft K, with which collar the rod g engages through the medium of a stud g. The

opposite end of the rod gis connected with one arm of a bell-crank lever 9 fulcrumed at its angle on a rigid bearing 9 rising from an end of the frame I, the other arm of the bell-crank having connected with it an operating-rod g extending into a position conveniently accessible to the operator. The arm i is sufficiently resilient to enable movement of the rod i to produce the longitudinal adjustment of the inner tube t".

By raising or depressing the rod 9 the inner tube 71 of the valve F may be adjusted to gage, according to desire, the dimensions of the fuel-mixture outlet, and this will be performed automatically by the action of the governor 1 upon the rod.

Obviously without departure from my invention the functions of the rotary and longitudinal relative adjustments of the tubes i 4." may be interchanged.

hat I claim as new, and desire to secure by Letters Patent, is

1. A regulating-valve for gas-motors, composed of a stationary cylindrical tube, and a single continuous cylindrical tube telescoping therewith and rotatably and longitudinally adjustable relatively thereto, each tube having at intervals circumferential series of airinlet, gas-inlet and mixture-outlet openings registering respectively with those in the other tube, means for rotating the movable tube to adjust theinlet-openings and regulate the quality of the mixture, and means for adjusting the movable tube longitudinally to gage the outlet-openings and regulate the quantity of the discharge of mixture.

2. A regulating-valve for gas-motors, composed of a stationary cylindrical tube and a single continuous cylindrical tube telescoping therewith and rotatably and longitudinally adjustable relative thereto, each tube having, at intervals, circumferential series of air-inlet, gas-inlet, and mixture-outlet openings, respectively registering with those in the other tube, the air-inlet openings in the inner tube being longer and the mixture-outlet openings therein being wider than the corresponding openings in the outer tube, whereby the quality of the mixture may be regulated by rotating the one tube to adjust the dimen-' sions of the inlet-openings, and the quantity of the discharge of the mixture may be regulated by the longitudinal adjustment of said tube to gage the dimensions of the dischargeopenings.

3. A regulatingyalve device for gas-motors, comprising, in combination,a valve composed of a stationary outer cylindrical tube having circumferential series of air-inlet, gas-inlet and mixture-outlet openings, a chamber surrounding the tube at the gas-inlet openingsconnected with a gas-supply, a chamber surrounding the tube at the outlet-openin gs connected with a mixture-outlet, a single continuous cylindrical tube within the stationary tube and rotatably and longitudinally movable with relation thereto, said inner tube having openings corresponding with the openingsin the stationary tube, means for rotating the inner tube to adjust the inlet-openings and regulate the quality of the mixture, and means for moving the inner tube longitudinally to adjust the outlet-openings and regulate the quantity of the discharge of mixture.

4. A regulating-valve device for gas-motors, comprising, in combination, a valve com posed of a stationary outer cylindrical tube having circumferential series of air-inlet, gas-inlet and mixture-outlet openings, a chamber stirrounding the tube at tlie gas-inlet openings connected with a gas-supply, a chamber surrounding the tube at the outlet-openings connected with a mixture-outlet, a single continuous cylindrical tube Within the stationary tube and rotatably and longitudinally movable with relation thereto, said inner tube having openings corresponding with the openings in the stationary tube, a valve-rod extending from the inner tube operativel y connected with the governor of the motor, hand operated lever mechanism connected with the said valve-rod to effect rotary adj ustment of the inner tube, and other hand-operated 1evermechanism connected with the said valverod to effect longitudinal adjustment of the inner tube.

MAX E. I- IER TEL.

In presence of R. N. OAKMAN, GEORGE O. LUNT. 

